Thisbookisaboutwritingsoftwarethatmakesthemosteffectiveuseofthesystemyou'rerunningon--codethatinterfacesdirectlywiththekernelandcoresystemlibraries,includingtheshell,texteditor,compiler,debugger,coreutilities,andsystemdaemons.ThemajorityofbothUnixandLinuxcodeisstillwrittenat